Initial implementation of distributed intent batch queue

Change-Id: I7ffed03651569ade1be1e8dca905bfaf369b7e03
diff --git a/core/net/src/main/java/org/onlab/onos/net/intent/impl/ObjectiveTracker.java b/core/net/src/main/java/org/onlab/onos/net/intent/impl/ObjectiveTracker.java
index 7eeec65..7cc5d47 100644
--- a/core/net/src/main/java/org/onlab/onos/net/intent/impl/ObjectiveTracker.java
+++ b/core/net/src/main/java/org/onlab/onos/net/intent/impl/ObjectiveTracker.java
@@ -216,5 +216,8 @@
         }
     }
 
+    //TODO consider adding flow rule event tracking
 
+    //FIXME the only intents that will be tracked are events that were
+    //executed on this instance. Need to have some backup trackers...
 }